/Engine/Source/Editor/BlueprintGraph/Classes/K2Node.h
Helper function forExpandNode(), allowing other contexts to call pin expansion alone
void ExpandSplitPins ( [FKismetCompilerContext](API\Editor\KismetCompiler\FKismetCompilerContext) & CompilerContext, [UEdGraph](API\Runtime\Engine\EdGraph\UEdGraph) * SourceGraph )